.twocol {
  position:relative;
}

.twocol .leftside {
  width: 49%;
  padding: 0px 3px 0px 0px;
  float: left;
}

.twocol .rightside {
  margin-left: 51%;
}

.twocol .caption{
  position: absolute;
  left: 50%;
  transform: translate(-50% , 0%);
}

.onecol {
  clear:both;
}